Preferred method: a wall mountable controlled substance lockbox with two doors and two locks (each lock is keyed differently).

A single-lock lockbox that is stored in a drawer or cabinet that is secured at all times with a hasp and padlock. The drawer and cabinet should be substantially constructed such as in a drawer that is part of either a bench or cabinet that is mounted to the wall or floor.

If a lab is not accessible to the public, then an option is to use a single-lock lockbox, stored in a drawer or cabinet in a room that is kept locked at all times.

Schedule III, IV and V substances can also be stored with Schedule I and II substances.

Cold storage for controlled substances

For storage at 4°C or colder, a single-lock lockbox in a refrigerator or freezer that can also be locked is permitted. The room must also be lockable, and locked after hours.